<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
    <div id="main" style="width: 800px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import*as echarts from 'echarts';
import _ from 'lodash';
export default {
 data () {
    return {
      //需要合并的对象
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
 },
 created(){

 },
 //此时页面上的元素初始化完毕
 async mounted(){
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));
    const {data:res} = await this.$http.get('reports/type/1');
    if(res.meta.status !== 200) return this.$message.error('获取图标数据失败');
    const result = _.merge(res.data,this.options);
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result);

 }, 
 methods:{
    
 }
}
</script>

<style lang="less" scoped>

</style>